Any supplements for kenya tree or gsp

[Kapachuka3]

I have a kenya tree and a frag of gsp, are there anh supplements i can add to the tank to make them grow faster or thrive more? They look pretty fine but i feel they could look better or healthier. Like iron or something?

 

[Ron Reefman]

Good quality light. Those are 2 of the fastest growing corals available.